public static Project Load(string filename)
{
var project = new Project();
var envelopes = new Dictionary <int, Envelope> [Project.ExpansionCount, Envelope.Max];
var duties = new Dictionary <int, int> [Project.ExpansionCount];
var instruments = new Dictionary <int, Instrument>();
var dpcms = new Dictionary <int, DPCMSample>();
var columns = new int[5] {
1, 1, 1, 1, 1
};
var patternFxData = new Dictionary <Pattern, RowFxData[, ]>();
var noteLookup = new Dictionary <string, int>
{
["A-"] = 9,
["A#"] = 10,
["B-"] = 11,
["C-"] = 0,
["C#"] = 1,
["D-"] = 2,
["D#"] = 3,
["E-"] = 4,
["F-"] = 5,
["F#"] = 6,
["G-"] = 7,
["G#"] = 8
};
for (int i = 0; i < envelopes.GetLength(0); i++)
{
for (int j = 0; j < envelopes.GetLength(1); j++)
{
envelopes[i, j] = new Dictionary <int, Envelope>();
}
}
for (int i = 0; i < duties.Length; i++)
{
duties[i] = new Dictionary <int, int>();
}
DPCMSample currentDpcm = null;
int dpcmWriteIdx = 0;
Song song = null;
string patternName = "";
var lines = File.ReadAllLines(filename);
for (int i = 0; i < lines.Length; i++)
{
var line = lines[i].Trim();
if (line.StartsWith("TITLE"))
{
project.Name = line.Substring(5).Trim(' ', '"');
}
else if (line.StartsWith("AUTHOR"))
{
project.Author = line.Substring(6).Trim(' ', '"');
}
else if (line.StartsWith("COPYRIGHT"))
{
project.Copyright = line.Substring(9).Trim(' ', '"');
}
else if (line.StartsWith("EXPANSION"))
{
var exp = int.Parse(line.Substring(9));
if (exp == 1)
{
project.SetExpansionAudio(Project.ExpansionVrc6);
}
}
else if (line.StartsWith("MACRO"))
{
var expansion = line.Substring(5, 4) == "VRC6" ? Project.ExpansionVrc6 : Project.ExpansionNone;
var halves = line.Substring(line.IndexOf(' ')).Split(':');
var param = halves[0].Split(new[] { ' ' }, StringSplitOptions.RemoveEmptyEntries);
var curve = halves[1].Split(new[] { ' ' }, StringSplitOptions.RemoveEmptyEntries);
var type = int.Parse(param[0]);
var idx = int.Parse(param[1]);
var loop = int.Parse(param[2]);
var rel = int.Parse(param[3]);
if (type < 3)
{
var env = new Envelope();
env.Length = curve.Length;
// FamiTracker allows envelope with release with no loop. We dont allow that.
if (type == Envelope.Volume && loop == -1 && rel != -1)
{
loop = rel;
}
env.Loop = loop;
env.Release = type == Envelope.Volume && rel != -1 ? rel + 1 : -1;
for (int j = 0; j < curve.Length; j++)
{
env.Values[j] = sbyte.Parse(curve[j]);
}
if (type == 2)
{
env.Relative = true;
}
envelopes[expansion, type][idx] = env;
}
else if (type == 4)
{
duties[expansion][idx] = int.Parse(curve[0]);
}
}
else if (line.StartsWith("DPCMDEF"))
{
var param = SplitStringKeepQuotes(line.Substring(7));
var name = param[2];
var j = 2;
while (!project.IsDPCMSampleNameUnique(name))
{
name = param[2] + "-" + j++;
}
currentDpcm = project.CreateDPCMSample(name, new byte[int.Parse(param[1])]);
dpcms[int.Parse(param[0])] = currentDpcm;
dpcmWriteIdx = 0;
}
else if (line.StartsWith("DPCM"))
{
var param = line.Substring(6).Split(new[] { ' ' }, StringSplitOptions.RemoveEmptyEntries);
foreach (var s in param)
{
currentDpcm.Data[dpcmWriteIdx++] = Convert.ToByte(s, 16);
}
}
else if (line.StartsWith("KEYDPCM"))
{
var param = line.Substring(7).Split(new[] { ' ' }, StringSplitOptions.RemoveEmptyEntries);
if (param[0] == "0")
{
int octave = int.Parse(param[1]);
int semitone = int.Parse(param[2]);
int note = octave * 12 + semitone + 1;
if (project.NoteSupportsDPCM(note))
{
int dpcm = int.Parse(param[3]);
int pitch = int.Parse(param[4]);
int loop = int.Parse(param[5]);
project.MapDPCMSample(note, dpcms[dpcm], pitch, loop != 0);
}
}
}
else if (line.StartsWith("INST2A03") || line.StartsWith("INSTVRC6"))
{
var expansion = line.Substring(4, 4) == "VRC6" ? Project.ExpansionVrc6 : Project.ExpansionNone;
var param = SplitStringKeepQuotes(line.Substring(line.IndexOf(' ')));
int idx = int.Parse(param[0]);
int vol = int.Parse(param[1]);
int arp = int.Parse(param[2]);
int pit = int.Parse(param[3]);
int dut = int.Parse(param[5]);
var name = param[6];
var j = 2;
if (!project.IsInstrumentNameUnique(name))
{
name = param[6] + "-" + j++;
}
var expansionType = line.StartsWith("INSTVRC6") ? Project.ExpansionVrc6 : Project.ExpansionNone;
var instrument = project.CreateInstrument(expansionType, name);
if (vol >= 0)
{
instrument.Envelopes[0] = envelopes[expansion, 0][vol].Clone();
}
if (arp >= 0)
{
instrument.Envelopes[1] = envelopes[expansion, 1][arp].Clone();
}
if (pit >= 0)
{
instrument.Envelopes[2] = envelopes[expansion, 2][pit].Clone();
}
if (dut >= 0)
{
instrument.DutyCycle = duties[expansionType][dut];
}
instruments[idx] = instrument;
}
else if (line.StartsWith("TRACK"))
{
var param = SplitStringKeepQuotes(line.Substring(5));
song = project.CreateSong(param[3]);
song.SetLength(0);
song.SetPatternLength(int.Parse(param[0]));
song.Speed = int.Parse(param[1]);
song.Tempo = int.Parse(param[2]);
columns = new int[song.Channels.Length];
}
else if (line.StartsWith("COLUMNS"))
{
var param = line.Substring(7).Split(new[] { ' ', ':' }, StringSplitOptions.RemoveEmptyEntries);
for (int j = 0; j < song.Channels.Length; j++)
{
columns[j] = int.Parse(param[j]);
}
}
else if (line.StartsWith("ORDER"))
{
var orderIdx = Convert.ToInt32(line.Substring(6, 2), 16);
var values = line.Substring(5).Split(':')[1].Split(new[] { ' ' }, StringSplitOptions.RemoveEmptyEntries);
var order = new int[song.Channels.Length];
for (int j = 0; j < song.Channels.Length; j++)
{
int patternIdx = Convert.ToInt32(values[j], 16);
var name = values[j];
var pattern = song.Channels[j].GetPattern(name);
if (pattern == null)
{
pattern = song.Channels[j].CreatePattern(name);
}
song.Channels[j].PatternInstances[orderIdx] = pattern;
}
song.SetLength(song.Length + 1);
}
else if (line.StartsWith("PATTERN"))
{
patternName = line.Substring(8);
}
else if (line.StartsWith("ROW"))
{
var channels = line.Split(new[] { ':' }, StringSplitOptions.RemoveEmptyEntries);
var rowIdx = Convert.ToInt32(channels[0].Substring(4, 2), 16);
for (int j = 1; j <= song.Channels.Length; j++)
{
var noteData = channels[j].Split(new[] { ' ' }, StringSplitOptions.RemoveEmptyEntries);
var pattern = song.Channels[j - 1].GetPattern(patternName);
if (pattern == null)
{
continue;
}
//var fxData = new RowFxData[song.PatternLength];
if (!patternFxData.ContainsKey(pattern))
{
patternFxData[pattern] = new RowFxData[song.PatternLength, 4];
}
// Note
if (noteData[0] == "---")
{
pattern.Notes[rowIdx].Value = Note.NoteStop;
}
else if (noteData[0] == "===")
{
pattern.Notes[rowIdx].Value = Note.NoteRelease;
}
else if (noteData[0] != "...")
{
int famitoneNote;
if (j == 4)
{
famitoneNote = (Convert.ToInt32(noteData[0].Substring(0, 1), 16) + 31) + 1;
}
else
{
int semitone = noteLookup[noteData[0].Substring(0, 2)];
int octave = noteData[0][2] - '0';
famitoneNote = octave * 12 + semitone + 1;
}
if (famitoneNote >= Note.MusicalNoteMin && famitoneNote <= Note.MusicalNoteMax)
{
pattern.Notes[rowIdx].Value = (byte)famitoneNote;
pattern.Notes[rowIdx].Instrument = j == 5 ? null : instruments[Convert.ToInt32(noteData[1], 16)];
}
else
{
// Note outside of range.
}
}
// Volume
if (noteData[2] != ".")
{
pattern.Notes[rowIdx].Volume = Convert.ToByte(noteData[2], 16);
}
// Read FX.
for (int k = 0; k < columns[j - 1]; k++)
{
var fx = noteData[3 + k];
if (fx == "...")
{
continue;
}
var param = Convert.ToByte(fx.Substring(1), 16);
var fxData = patternFxData[pattern];
fxData[rowIdx, k].fx = fx[0];
fxData[rowIdx, k].param = param;
switch (fx[0])
{
case 'B': // Jump
pattern.Notes[rowIdx].Jump = param;
break;
case 'D': // Skip
pattern.Notes[rowIdx].Skip = param;
break;
case 'F': // Tempo
if (param <= 0x1f) // We only support speed change for now.
{
pattern.Notes[rowIdx].Speed = param;
}
break;
case '4': // Vibrato
pattern.Notes[rowIdx].VibratoDepth = (byte)(param & 0x0f);
pattern.Notes[rowIdx].VibratoSpeed = (byte)VibratoSpeedImportLookup[param >> 4];
if (pattern.Notes[rowIdx].VibratoDepth == 0 ||
pattern.Notes[rowIdx].VibratoSpeed == 0)
{
pattern.Notes[rowIdx].Vibrato = 0;
}
break;
}
}
}
}
}
foreach (var s in project.Songs)
{
CreateSlideNotes(s, patternFxData);
s.RemoveEmptyPatterns();
s.SetSensibleBarLength();
foreach (var c in s.Channels)
{
c.ColorizePatterns();
}
}
project.UpdateAllLastValidNotesAndVolume();
return(project);
}